On my previous visit to Warhammer World I took various photographs of the resin Forge World model which was on display. On my most recent visit in June 2025 I was able to take a photograph of the new(ish) plastic Arvus Lighter in the display cabinets.

Comparing the plastic version to the resin version there are some subtle differences.

The main areas are in the engine cowling and around the cockpit. Otherwise these are very similar models.
The Arvus Lighter is a small, general purpose cargo shuttle that is widely used by the Imperium of Man for many tasks, both in space and on the surface of planets. The Arvus is commonly used by both Imperial Navy warships and Imperial merchant vessels, including Rogue Traders. The Arvus is just one of many types of small, void-capable shuttles used by the Imperium. The Arvus is piloted by a single pilot, and is not equipped with any weapon systems, in fact, the Arvus possesses only the most basic navigation equipment, external sensors, and proximity alarms. The Arvus has a powerful engine that allows it to carry heavy cargo to and from a planet’s surface
I have the new Horus Heresy plastic Arvus Lighter on my workbench.